Oil burner



W. R. BROWN Aug. 17, 1937.

OIL BURNER Filed Oct. 5, 1936 INVENTOR WALTER R. BROWN Has.

4 TTORNE YS Patented Aug. 17, 1937 UNITED STATES OIL BURNER Walter R. Brown, Pontiac, Mich, assignmof fifty-one per cent to Marshall E. Smith and Corliss Armstrong, both of Pontiac, Mich.

Application October 5, 1936, Serial No. 134,114 9 Claims. (01. 158-28) The invention relates to pmviding oil burners of the wick type with an automatic lighter, and has as one of its principal objects the provision of a pilot light effective upon initial movement of the wick to its operating position to ignite the wick, and is adapted to be extinguished upon further upward movement of the wick during the operation of the burner.

A further object of this invention is to provide a novel construction of pilot light adapted to be re-ignited by the main wick upon movement of the latter to its inoperative position.

Still further it is an object of this invention to provide a device which will possess a minimum 5 number of parts and which will therefore be capable of economical manufacture and assembly and which will materially cut down the time and annoyance involved in lighting oil burners of this type.

With the foregoing as well as other objects in 3 view, the invention resides in the novel details of construction and operation illustrated and about to be described.

In the drawing:

Fig. 1 is a longitudinal sectional view through 5 an oil burner constructed in accordance with this invention;

Fig. 2 is a cross sectional view taken substantially on the plane of the line 2-2 of Fig. 1;

Fig. 3 is a sectional view through the automatic lighter unit taken substantially along the line 3-3 of Fig. 2.

Referring now to the drawing more in detail, it will be noted that there is illustrated in Fig. 1

r an oil burner III comprising an annular casing 0 and a wick tube |2 concentrically arranged within the casing II and having a diameter less than the diameter of the casing II to provide space for receiving a wick l3 and suitable actuating means i4 supported on the outer wall l5 of the casing n to operate the wick.

Secured to the inner portion of the burner III is an apertured plate l6 adapted to support a flame spreader designated generally by the reference character II.

It will be noted that in Fig. 1 the casing II is provided approximately midway between its upper and lower extremities with a return bent portion l8 forming a shoulder for a flue I3 of conventional design.

55 2| through the pilot wick tube 22 beyond a slot 24 inthe top portion of the annular casing II. This pilot wick tube consists of an outer portion of the wall I! and an upper portion 25 of the automatic lighter unit 23. This upper portion 25 runs substantially parallel to the wall I! of the easing II from the fuel chamber 2| to the slot 24 in the top of the casing. At this point the upper portion 25 extends inwardly to conform substantially to the contour of the top portion of the casing A pilot wick adjuster 26 is incorporated in the automatic lighter unit 20 to allow for adjustment and replacement of the pilot wick 23. This may be of any of the known general types for adjusting wicks, but in my preferred form it consists of an adjuster rod 21 upon which are mounted two wick engaging gears 23 and 29. The rear portion of the rod 21 is seated in the mounting 30 and the front portion is seated in the mounting 3|. A packing nut 32 is preferably mounted on the rod 21 upon the outer side of the fuel chamber 2| to prevent leakage of the fuel. A hand wheel 33 is attached to the outer end of the rod 21. Fuel is supplied to the fuel chamber 34 of the burner ill through an opening 35 connected to suitable pipe means 36. The fuel supply for the lighter unit 20 is derived from the fuel chamber 34 of the main burner by means of holes 31 and 33 in the side wall of the casing leading directly from the fuel chamber 34 of the burner it into the fuel chamber 2| of the automatic lighter unit. These holes are preferably placed at diiferent levels to allow the escape of air and to guard against possible blockage of one of the holes.

The operation of the automatic lighter unit is as follows: The pilot wick 23 is turned up by the adjuster 26 to a position approximately flush with the top of the casing II. It is lighted and then adjusted to give the smallest possible flame. When the main wick l3 of the burner I3 is desired to be lighted, it is moved up by mechanism ll so that the top of the wick contacts the flame from the pilot 23 and thus ignites the main wick l3. Further upward movement of the main wick |3 will snufi the pilot by forcing the ignited portion of the wick 23 against the inwardly extending portion of the outer wall 25 of the lighter unit 23. When the burner III is to be shut off, the main wick I3 is slowly lowered by mechanism i4 and before it is extinguished by the lack of air in the wick tube l2, it frees the pressure upon the pilot wick 23 and allows it to ignite from the main wick l3.

What I claim as my invention is:

1. In a liquid fuel burner having a wick supported for movement therein, a pilot light predeterminedly positioned with respect to the wick to ignite the latter upon initial upward movement of the wick and extinguishable upon continued upward movement of the wick.

2. In a liquid fuel burner having a wick supported for movement therein, an adjustable pilot light predeterminedly positioned with respect to the wick to ignite the latter upon initial upward movement of the wick and extinguishable by the continued upward movement of the wick.

3. In a liquid fuel burner having a wick supported for movement therein, a pilot light predeterminedly positioned with respect to the wick to ignite the latter upon initial upward movement of the wick and extinguishable upon continued upward movement of the wick, said pilot light being ignited upon the downward movement of the wick.

4. In a liquid fuel burner having a movable wick, a pilot light predeterminedly positioned with respect to the wick to be ignited upon the downward movement of the burning wick.

5. In a liquid type fuel burner having a casing and a wick supported for movement within the casing, a pilot light predeterminedly positioned with respect to the wick to be extinguished during operation of the wick and re-ignited upon downward movement of the wick.

6. In a liquid fuel burner having a casing and a movable wick within the casing, an igniting unit attached to the casing, means for supplying fuel to the unit, a pilot wick carried by the unit predeterminedly positioned with respect to t] wick to ignitably engage the wick upon initi upward movement of the wick, and extinguisl able upon continued upward movement of tl wick.

7. In a liquid type fuel burner having a cash and a movable wick, an igniting unit attached 1 the casing, a pilot wick carried by the unit, sai pilot wick being predeterminedly positioned wit respect to the wick to be extinguished during 01 eration of the wick and to be ignited by the wic upon its downward movement.

8. In a liquid type fuel burner having a ca: ing, a slot in the casing, a main fuel chamber, wick tube and a wick adjustably mounted withi the tube, an igniting unit attached to an oute portion of the casing, a fuel chamber in the uni fed by the main fuel chamber, a pilot wick ex tending from the fuel chamber to the top inne portion of the casing and positioned to lightabl engage the main wick upon initial upward move ment of said wick, and extinguishable upon con tinued upward movement of the wick.

9. In a liquid type fuel burner having a casin and a main burner wick supported for movemen within the casing, an igniting unit attached t1 the casing and having a pilot wick predeterminedly positioned with respect to the main burne; wick to be extinguished by the main burner wicl upon movement of the latter from the casing, and re-ignited by the main wick upon movement 01 the latter toward the casing.

WAL'I'ER R. BROWN. 

